package mobi.zeedev.flyingsaucer.common.CredentialsModule.impl;

import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class SHA1 {

	public static String getSHA1(String text) throws NoSuchAlgorithmException, UnsupportedEncodingException {
		byte[] sha1hash = new byte[40];
		
		MessageDigest md = MessageDigest.getInstance("SHA-1");
		md.update(text.getBytes("iso-8859-1"), 0, text.length());
		sha1hash = md.digest();

        return convToHex(sha1hash);
	}
	
    private static String convToHex(byte[] data) {
        StringBuilder buf = new StringBuilder();
        for (int i = 0; i < data.length; i++) {
            int halfbyte = (data[i] >>> 4) & 0x0F;
            int two_halfs = 0;
            do {
                if ((0 <= halfbyte) && (halfbyte <= 9))
                    buf.append((char) ('0' + halfbyte));
                else
                	buf.append((char) ('a' + (halfbyte - 10)));
                halfbyte = data[i] & 0x0F;
            } while(two_halfs++ < 1);
        }
        return buf.toString();
    }
   
//	private static final String getSHA1(String sin) {
//		String ret = null;
//		try {
//			String digest = SHA1.getSHA1V2(sin);
//
//			ret = digest;// = res.toString();
//		} catch (Exception e) {
//			e.printStackTrace();
//		}
//
//		return ret;
//	}
    
    
    
}
